Coal-washer and ore-concentrator.



A. G. CAMPBELL.

GOAL WASHER AND ORE CONGENTRATOR. APPLICATION FILED MAY 3, 1913 0000 coon oooc 00, 0 oroc ungo 0000 o0c 0000 who 0 oooo GuDO eoo oooo

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WITNESSES b Patented Oct. 13, 191%.

BHEBTSSHEET 1.-

ATTORNEYS A. G. CAMPBELL.

GOAL WASHER AND ORE-CONGENTRATOR.

APPLICATION FILED MAY s, 1913.

1, 1 1 3,876, Patented Oct. 13, 1914.,

2 SHEETSS1IEET 2.

Iii?

i (25/0/50 fflkmyiai/ I 7 By 6 ATTORNEYS 25 materlals under treatment;

C. CAMPBELL,

. =The-invention relates-t coal washers and November 63,;1906; andseptember 8, 1908,

respectively,{and in the application tor Le'tt'ei'fs Patent of-the United States, No. 701,188,

filed by meon June 5,1912.

,IQ The obj ect :of the present invention is .to

provide. I certain new :and useful improvements in. ooal washersand ore concentrators of. the type-mentioned,- whereby a novel per- ?iu ssive ,action is :given to the pan-to facilitate the se sneon a the heavier and lighter materials andato allow convenient ad'ustmentor the'parts to suit the nature 0 the ln'order topreduoe the desired result use is'lma'de of a Qpan mounted to=o sci:l 1ate, a revoluble Qwhee l providedon its peripheral face-with apercussionlug adapted to engagejone end of the said pan, and a spring dear-inanimate with the said pan todraw thelatter' toward :the' said wheel and toexert an upward" and forward .pull on the pan. llse is, also made of a an provided with perforate, transverse!" es, pivoted at their filli' and '* wee ends" n transverse rods held in "the sidcs'offthefpan, the free end of arifile exingQapproximately-half way under the h "'iifile ahead; A practical embodiment of the invention is represented the accompanying drawing's jojr'minga part -o this' speoification, in which similar I characters of. reference indicate 1corresponding paifts inalL-the views.

llis a plan-viewbf'the coal washer ore concentrator;' '2 is .a longitudinaljseetion of the same HF ig; 3 is across sectionf'o'f the same; Fig.4- is a reduced rear end-elevation of the -san1e,,the ceiling of the housing being shown m, section; F ig. 5 is a "1 sideelevation .of the coal washer and ore pains receiving a percussive action from onech'ncentrator"providedlwith two cooperative revoluble' wheel, the floor and ceiling of the housing-being shown in section; Fig. 6- is*a' "con'n-wa'srrnn am ons-concnnrnnron s emauon of Letters meat. Application filed m 3, 1913. Serial No. 165,277.

ALoivzlo o. CAEZPBELL, or ASHEVILLE, nonrn oaaonrnn.

Patented Oct. 13, 1914.

- side elevation-0t a modified form of the spring device, the overhead supporting shown in section; and Fig. 7 is a detail side view partly in section, of the means for supporting the rifiies.

The bottomA of the pan A is connected by hinges 1B,.B with legs B, B connected at their lower ends by' hinges B, B with blocks C, C bolted or otherwise secured to a support Def any approved construction. The leg B isarranged at the forward .end of the plan A while the leg 13 is arranged near the jnear or tail end, and the leg B is somewhat longer than the'leg B.

On the :block C are mounted bearings E in which is mounted to tum a shaft F provided with a pulley F connectedxby belt with other anadhinea'y. for impartingfa rotary motion to the sha'ft On the shaft F issecured la wheel G provided on its peripheral :Eaee with a percussion lug Gr adapted to enga e .a bumpmgxbl-oek H secured on the torwar .end of the keel I forming part of the. an A. In order to hold the bumping bloc H in contact with the peripheral face of the wheel G and its percussion lug G the {following arrangement is made: On the bumping block H -is secured an eye J connected bye wire, rope orother suitable fiexible connection J with an eye J 2 forming part of :a spring device K, which may be either in the form shown in Fig. 4 or in the term shown in Fig. 6. The spring device K shown in Fig. 4-,consists of .a spring board K" to the free end of which is secured the eyed; and theseid spring. board K is fastened by a bolt Kato a timber K attached to the under side of an overhead support K;-

such as a ceiling or the -like.- The spring;

nut K at the top end of the. eye J? the tension of the sprin K can be regulated.

Byreference to igs. 2 and 5, it will be noticed that the flexible connection J extends upwardly and slightly forwardly relative to the pan A'so that the-bumping block H- is held in contact with'the peripheral face of the wheel G and :its percussion lug G.

The detail constru ion of the pan A is as follows: From the bottom A rise the sides A the'head piece A and the tail piece A, and a short distance. from the'headfl piece A is arranged a transversely extending barier N to-form with the head piece A a concentrate pocket N.

The pocket N is provided at the bottom with openings N .for the discharge of the concentrates, as hereinafter more fully explained. The lower edge of the barrier block N is provided with openings N opening into the pocket- N- for the passage of concentrates from the screen pocket 0 arranged at the.

head end of the pan A. This screen pocket 0 is formed by a screen 0 extending from the barrier block N to the bottom A a distance from the barrier block N, as plainly indicated in Fig. 2. The bottom A of the pan A is slightly inclined from the tail end of themachine toward the head, and the front portion A of the bottom A has a steeper inclination than the remaining portion of the bottom as will be readily understood by'reference to Fig. 2, the said front portion A forming the bottom of the pocket 0.

Within the pan A are arranged series of transversely extending perforate riiiies P mounted to swing on rods P held between pairs ofsuperimposed bars A, A"

(see Fig. 3) attached to the bottom A and the sides A of the pan A. By reference to Fig. 2 it will be noticed that the rifiles extend from the rods P in a forward direction and their free ends rest on the bottom A except the foremost rifiies which have their free ends resting on the top of the screen 0. It willalso be noticed that each rifile 1? extends with its forward end under the next following riflle ahead a distance approximately of half the length of this rili'le. By reference to Fig. 1 it will be noticed that the rifiles on each rod P are slightly spaced apart by the use of suitable washers so as to facilitate the passage of the Water onto the rifiles, as hereinafter more fully explained.

As shown in Fig. 5, two pans A are arranged on opposite sides of the wheel G, and two percussion lugs G are arranged on the peripheral face of the wheel G diametrically opposite each other. The two fictible connections J of the two pans A C( nnect.

" with the eye J 2 of the spring board K, the eye J 2 being located directly above the centerof the wheel G.

The operation is as follows: When the shaft F is rotated then the centrifugal inertia of the wheel G together with the percussion lug G. affords the necessary impact on the bumping block H to lurch the pan A to' the right with such force and amplitude as is in keeping, first, with the weight ofthe loaded pan A, second, with the tension of the spring" device K, and, third, with he radial inclination of the legs B B. When the legs B B stand erect most of the weight of the loaded pan is borne by them, particularly the hind legs B Much of the weight is held by the spring device K. When the pan Arecoils from the impact given to it, as above described, it is by restraint held to the combined radial movement of the hinged legsB B 'lVhen-the pan is describing this path, the spring de-' vice is increasing in tension or lifting effeet while, the inclinin legsare diminishing their sustaining etfiect. The tension of the spring device is gaged in general to withstand the burden of weight and-inertia that is-brough't to bear upon it throughout so that it may permit of any desired am-.

time to just meet the, percussion lug G atthe next revolution of the 'wheel G, so that the total impact is the sum of the arrested motion of the pan A and the centrifugal impact of .the percussion lug G. The tension of the spring device K may be con-.-

nected so that the impact shall be every other revolution of the percussion lug G,

so that the pan A receives sixty bumps per minute instead of 120. From the foregoing it will be noticed that any desired efiect may be reached by the adjustment of one or more of the constructive parts; that is, the .legs 7 B B as to their length and-inclination;

total weight of the pan and load; the incli-' nation of the flexible connection J the weight and speed of the wheel G; thickness of the percussion lug G; etc., all of which should be in keeping with the needs of the case Whether the ap aratus is used for-coal washing, coarse or me; or for washing ore having baser metals or precious metals.

The reciprocating movement of the pan A due to the joint action of the spring device K and its flexible connection J with the pan A and the legs B B is very peculiar and very effective, as will presently appear. The spring device in the present case is designed'to act in conjunction with the legs W, B, the same as a toggle joint movement intervening between the power and the work,and is to hold the total weight, first,

against the variable component of gravity,

and, second. as against inertia of impact.

At-the instant. following the impact, the

vice K,'but the normal efl'fective force of the eat despring device is counteracted in a by the increasmg component gravity gree of the load to that extent at times that the than the front legs B, as previously men-- tioned, so that the tail end of the pan A.

pan A settles back onits inclining 1 B, B, not being able to rise at all'even t ough the springadevice be at-its. maximum tension at the time. In-this event the tension of the spring device is increased .so that the eriodicity and amplitude shall be correct or the given purpose. In the ordinary spring device now generally used the action and reaction are ual and opposedthat is to say, the recoil o the spring has tl This violent return. jerk has a tendency to unseat the bed and all would flow toward the tail of the pan and there'would be only a shaking table like that of-a screen; fur thermore, there would be only a shuflling to and fro but no carrying effect toward the head would be,- produced. .In the resent cooperating mechanical movement t e pan A nearing the terminus of-the stroke backward is exceedingly slow both goingand coming,,and there is a well-gaged-accelerated movement as the knuckle of-the toggle joint straightens'up and the spring device has its full unrestrained efiect.

i It will be understood that the force of the impact is not spent upon the wheel Gas if the latter were at a standstill, but it is the opening D-" leadingv to= a-sluiceQ/q'ioncarrycentrifugal inertiaof the wheel that'takes the impact, and that force increases with the square of the velocity. Again, with the double action pans A, A shown in Fig. 5, the impacts are at the same' instant and are counteractive. That they ma be constrained to bump at the same mstant, the

one spring device and the one connection operate both pans A, A all other conditions being symmetrical. I

The hind legs B are made a little shorter is somewhat lower at the terminus of the back stroke. This is done for the purpose that the flow may at that instant be more recipitate to favor the tailings discharge.

' hen again, at the instant of impact, the

pun A; is practically level, thus favoring the discharge of the headings at the opportune time. "There is another new and advantageous feature as an' outcome of the curvilinear path of the pan A. By notingthe dotted curve indicating the path of the legs, it will he noted thatit is downward toward the rear or tail .while it is downward toward the head. It will be understood that-during- 6881118 violence as the impact of the percussion lug.

' with the multivariable .eurvilinearehnoveez 1 the bed, and since the water on thesurface There was either msilficient actipnon y;

Q mounted on thesupportD; 'llhe recep 10 the beading .of the rillles atoundri-thezrods such as coal, that cannot traverse the-closely will undergo suchibuoyancyias-is guldzserveg to give further enrichment hand-when the pan; -A,-isimoiz;ing onward the reverse action takes-efiect,-that asatoisay the grows wei htier1-and;-theicompacted-75 dense material clings persistent1y..;to.lthe.

rillles and p'artakes of the "forward :throwfi due to the percussive. action. lnm iugthfl machine for washing coal,.-for ms tance,.the

coal and water are conveyed-ontothe-panrA so at about one-third 'the -distance..frometh head thereof. 3 1 The percussive action 1de6cribdtogethet= ments and the multiloselygsint rlappingw'se rilll'es P serve-to cause-a: separati n ofithe dense material frormthe lessdense material,' the dense material being, againL-separated intofine stall andcoarse-fstull'. The-fffine stuff becomes compacted?in degreeiandim .96 .termeshes with ,th'e'closely. ;-;interlappingf rililes. The coarse dense stall is; jigge'dgand -The coarse dense stufi' massesziatj theidieadi' barrier N, fi'nally'clamhers-oveiitheesarneandz into the pocket. N front-- whi'chn-itt pasaes through .theopenings N -into=-- a. receptacle:

zw Q; is provided in its. bottomtw'ith an;-

ing off the dense material to a suitable-place of discharge. The rods'P'. together with preaches the head of'thep'an'A is impelledto'pass through the fixed screen: o r-intoithef 1 hutch pocket 0, from which it 'passesainto" the openings N? .and into the pocket -Nitwbe discharged with.- the coarse: dense stliil,...a'spreviously mentioned. All the lighter-stuff,

cessive action. The multiple rifles in cross section if thoroughly fitting throughout the intersticial spacings of therifles enable much closer'interlappmg and protection against watery diffusion. This mat of meshing has also a retentive power as against backsliding and accelerates the travel of the concentrates to the head.

The multiple rifles have lateral openings,

, ends of the rods P 'so as to allow adjusting the rods with a view to move the free ends of a rifle a greater'or-less distance under the hext rifle ahead. Itjwill be noticed that the rifles on account of being adjustable can be readily' dapted to the needs of any particular case, and the rifles also serve as lodgments for thecoarser'material in the longitudinal channels; that is, stuff that is too large passes under the closely-lapping rifles. Theretention connectionL fat the. tail end of. the pan A serves thedouble purpose, first, to cut short the amplitude-pf the: pan 'in its backward and downward ter vi'ded with a pan, provided at its head-with minal movement, and, second, to give a downward lurch or impetus to the bed and also to the rifles. a a

j Itwill be understood that at the instant of the impact of the percussion lug-the pathof the movement is horizontal, or nearlyso, the

path at all times being tangent to the curvedescribed by the hinged legs B ,.B as indicated by the dotted lines; that is to say, the path is a true circle, the legs B, B being radii to the circle.

- The effect of the downward lurch is to settle the bed, and to close down the rifles sun to the bottom, or to settle the dense stu and to disengage the lighter stuff at the instant ofcopious tail discharge. The

backward impulse of the percussion lug serves to cause a violent rush of the entire bed toward thehead thus giving buoyancy to their rifles and a flow of the diffused mass either under the rifles or through the perforations upwardly, carrying the lighter material to the surface flow. It is atjhis juncture that the arresting cord seryes to settle the diffused bed downwardly .v

Having thus described my invention, I claim asnew and desire to secure by Letters Patent:

1. A machine of the class described pro-. vided with a pan, means for oscillating the pan and imparting percussive action to the same, transversely-extending swinging rif- .fies Within the said pan and inclined forwardly and downwardly, the rifles being fulcrumed at their elevated ends and the forward end of one rifle extending approximately half way under the next rifle ahead. 2. A machine of the class described =pr'ovided with a pan, legs for supporting the pan and mounted to swing, one of the legs being'at the head of the pan and being longer than the other leg at the rear end of the pan, means for oscillating the pan and imparting percussive action to the same, and transversely-extending swinging rifles Within the said pan' and inclined forward and downwardly, the rifles being fulcrumed at their elevated ends, and the forward end of one rifle extending approximately half way under the next rifle ahead.

3. A machine of the class described, provided with a pan, provided at its head with a transverse barrier forming with the headend of the pan a concentrate pocket provided in its bottom with dischargefopemngs,

means for oscillating the pan and imparting. percussive action to the-same, transverselyextending swinging rifles; within thesaid pan and inclined forwardly and downwardly, the rifles being fulcrumed at their elevated endsand the forward end of one rifle. extending approximately half way under the next rifle ahead; I Y

- 4-. A machine-of tlie classdescribed, pro

a transverse barrier spaced from the head end to form with the same a concentrate pocket, the barrier having openings leading to the said pocket'and the latter having dis-.

charge openings in its bottom, a screen in the head end of the pan and terminating at the. said barrier above the openings therein, means for oscillating the pan and imparting percussive action to the same, and transversely extending swinging rifles within the said pan and inclined forwardly and downwardly, the rifles being fulcrumed at their elevated ends and the forward end of one rifle extending approximately half way under the next rifle ahead.

'- 5. A machine of the class described pro- .vided with a panprovided with rifles, swing legs pivotally connected with the pan to allowxthe pan to oscillate, the legs being of unequal length and the shorter one being at' the tail end of the pan, a revoluble wheel provided at its peripheral face with a percussion lug adapted to engage the head of the said pan, the legs of the pan being. approximately vertioal at the inception of the percussive stroke, a flexible connection attached at one end to the head of the pan and extending upwardly and forwardly, and

a spring device connected with the other end of the said flexible connection.

6.- A machine of the class described provided with a pan provided with rifles, swing legs pivotally connected with the pan to.

allow the pan to oscillate, the legs being of .provided at its peripheral face with a percussion lug adapted to engage the head of the sald pan, the legs of the pan being approximately vertical at the inception of the percussive stroke, a flexible connection attached at one end to the head 91 the pan and extending upwardly and" forwardly therefrom, and an adjustable spring device connected with the other end of the said wire rope. v

v7. A machine of the class described provided with a pan provided with rifiles, swing legs pivotally connected with the pan to allow the pan to oscillate, the legs being of different lengths and the shorter one being at the tail end of the pan, a revoluble wheel provided at its peripheral face with a percussion lug adapted to engage the head of the said pan, the legs of the pan being' approximately vertical at the inception of the percussive stroke, a flexible connection attached at one end to the head of the pan and extending upwardly and forwardly, a spring device connected with the other end of the said flexible connection, and a flexible retaining connection. connected with the tail end of the pan.

S.- A machine of the class described, comprising a revoluble wheel provided with percussion lugs, pans on opposite sides of the said wheel and having bumper heads adapted to engage the peripheral face of the said wheel and the said percussion lug,

swing legs for the said pans, an overhead spring device and a flexible connection secured to the spring device and to the head 'end of each of the said pans to draw the pans to the wheel and to assist the load.

9; A machine of the class described, comprising a revoluble wheel provided with perin sustaining cussion lugs, pans on opposite sides of the said wheel and having bumper heads adapt-' ed to engage the peripheral face of the said wheel and the said percussion lug, swing legs for the said pans, an overhead spring device, a flexible connection secured to the spring device and to the head end of each of the said pans to draw the pans to the wheel and assist in sustaining the load, and spring retention means connected with the tail ends of the said pans.

10. In a machine of the class described, a pan, means for oscillating the pan and imparting percussion action to the same, and transversely extending rittles pivoted to swing freely, said rifiies being inclined and overlapping one another.

11. In a machine of the class described, a panprovidcd with ritIles,mcans formounting the pan to permit it to move longitudinally and downwardly, a percussive impelling device acting on the pan, and a spring device connected with the head of the pan to retract the movements thereof with decreased force toward the impelling device.

12. In a. machine of the class described, a

pan provided with riflles, swinging legsof unequal length pivotally connected with the pan, the longer leg being at the forward end of the pan, whereby the pan is permitted to move longitudinally and downwardly,-

means for imparting a percussive action to the pan, and an over head spring device connected with the head of the pan and retracting the movements thereof with decreased fo'rce toward the percussion means.

13. In a machine of the class described, a pan provided with .rifiles, swinging legs of unequal length pivotally connected with the pan, the longer legs being at the forward end of saidpan, whereby the pan is permitted to move longitudinally and downwardly, a percussive impelling device acting on the pan, and an overhead spring device flexibly connected with the head end of the pan, and serving to retract the movement of the pan with decreasing force toward the impelling device.

14. In an impact-jig-pan of the class de scribed, a pan, swinging legs pivoted to the pan, the legs being of unequal length with the shorter leg at the tail end of the pan,

impact means for operating the pan, an inclined tension restraint engaging the impact head of the an and opposing conjointly the coacting and varying components of inertia. and gravity, and a vertical tension restraint engaging the tail of the pan and coacting with the short radial hindmost leg to arrest the precipitate downthrow of the tail, and to react in the initial centripetal uplift.

15. In an impact-jig-pan of the class described two pans, swinging legs pivoted to each pan, the shorter legs being at the tail end of the pan, a single tensional force'engaging a vertical connecting rod with bearings to maintain a fixed line of movement, a terminal eye on the connecting rod linking with two inclined members secured to the opposing heads of the pans, and impact means for simultaneously giving impetus to the two pans in a quarterly arc rearward and downward, the recoil of the spring restoring the two pans simultaneously to the impact means, the reciprocation of the two pans being by constraint the same in speed and amplitude.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ALONZO C. CAMPBELL.

Witnesses:

E. M. LYDA, LAWRENCE B. CAMPBELL.

iiiiieg of this patent may be obtained for five cents each, by addressing the Commissioner of mum,

' Washington, D. 0. 

